diff options
| -rw-r--r-- | target-ppc/kvm.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c index a090d79ad4..f3d0861a11 100644 --- a/target-ppc/kvm.c +++ b/target-ppc/kvm.c @@ -912,9 +912,15 @@ const ppc_def_t *kvmppc_host_cpu_def(void) /* Now fix up the spec with information we can query from the host */ - alter_insns(&spec->insns_flags, PPC_ALTIVEC, vmx > 0); - alter_insns(&spec->insns_flags2, PPC2_VSX, vmx > 1); - alter_insns(&spec->insns_flags2, PPC2_DFP, dfp); + if (vmx != -1) { + /* Only override when we know what the host supports */ + alter_insns(&spec->insns_flags, PPC_ALTIVEC, vmx > 0); + alter_insns(&spec->insns_flags2, PPC2_VSX, vmx > 1); + } + if (dfp != -1) { + /* Only override when we know what the host supports */ + alter_insns(&spec->insns_flags2, PPC2_DFP, dfp); + } return spec; } |